Station Overview Station Location
Station Number MT-CS-6 Latitude 46.280485
Station Name Ismay 27.6 WSW Longitude -105.276554
County Custer Elevation (ft) 2484



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 10 1.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 10 0.49 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 10 0.38 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 11 0.41 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 11 0.31 1.06 7 1.06 7 0.00 0 0 3 2 12.1 3 0
March 11 0.72 0.71 8 0.71 8 0.00 0 0 5 0 0.6 2 0
April 11 1.43 3.43 20 3.43 20 0.00 0 0 14 0 8.6 1 1
May 11 2.29 13.29 22 10.20 20 3.09 2 1 13 1 0.0 0 0
June 11 2.39 1.74 22 1.74 22 0.00 0 0 13 2 0.0 0 0
July 11 1.81 1.77 11 1.77 11 0.00 0 0 5 0 0.0 0 0
Aug 11 1.08 0.15 17 0.15 17 0.00 0 0 1 2 0.0 0 0
Sept 11 1.26 0.09 6 0.09 6 0.00 0 0 1 2 0.0 0 0
Water Year Totals: 13.58" 22.24" 113 days 19.15" 111 3.09" 2 days 1 55 days 9 days 21.3" 6 days 1 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2010
10/2/2010
10/3/2010
10/4/2010
10/5/2010
10/6/2010
10/7/2010
10/8/2010
10/9/2010
10/10/2010
10/11/2010
10/12/2010
10/13/2010
10/14/2010
10/15/2010
10/16/2010
10/17/2010
10/18/2010
10/19/2010
10/20/2010
10/21/2010
10/22/2010
10/23/2010
10/24/2010
10/25/2010
10/26/2010
10/27/2010
10/28/2010
10/29/2010
10/30/2010
10/31/2010
11/1/2010
11/2/2010
11/3/2010
11/4/2010
11/5/2010
11/6/2010
11/7/2010
11/8/2010
11/9/2010
11/10/2010
11/11/2010
11/12/2010
11/13/2010
11/14/2010
11/15/2010
11/16/2010
11/17/2010
11/18/2010
11/19/2010
11/20/2010
11/21/2010
11/22/2010
11/23/2010
11/24/2010
11/25/2010
11/26/2010
11/27/2010
11/28/2010
11/29/2010
11/30/2010
12/1/2010
12/2/2010
12/3/2010
12/4/2010
12/5/2010
12/6/2010
12/7/2010
12/8/2010
12/9/2010
12/10/2010
12/11/2010
12/12/2010
12/13/2010
12/14/2010
12/15/2010
12/16/2010
12/17/2010
12/18/2010
12/19/2010
12/20/2010
12/21/2010
12/22/2010
12/23/2010
12/24/2010
12/25/2010
12/26/2010
12/27/2010
12/28/2010
12/29/2010
12/30/2010
12/31/2010
Day of YearDaily PrcpMultiday Prcp
1/1/2011
1/2/2011
1/3/2011
1/4/2011
1/5/2011
1/6/2011
1/7/2011
1/8/2011
1/9/2011
1/10/2011
1/11/2011
1/12/2011
1/13/2011
1/14/2011
1/15/2011
1/16/2011
1/17/2011
1/18/2011
1/19/2011
1/20/2011
1/21/2011
1/22/2011
1/23/2011
1/24/2011
1/25/2011
1/26/2011
1/27/2011
1/28/2011
1/29/2011
1/30/2011
1/31/2011
2/1/2011
2/2/2011
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011
2/9/2011
2/10/2011
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011
2/16/2011
2/17/2011 0.05
2/18/2011
2/19/2011 T
2/20/2011 0.82
2/21/2011
2/22/2011
2/23/2011 T
2/24/2011 0.19
2/25/2011 0.00
2/26/2011 0.00
2/27/2011
2/28/2011
3/1/2011
3/2/2011
3/3/2011
3/4/2011
3/5/2011
3/6/2011
3/7/2011
3/8/2011
3/9/2011
3/10/2011
3/11/2011 0.45
3/12/2011 0.00
3/13/2011
3/14/2011
3/15/2011 0.08
3/16/2011
3/17/2011
3/18/2011
3/19/2011 0.00
3/20/2011
3/21/2011
3/22/2011 0.00
3/23/2011 0.08
3/24/2011
3/25/2011
3/26/2011 0.03
3/27/2011
3/28/2011
3/29/2011
3/30/2011
3/31/2011 0.07
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.13
4/2/2011 0.00
4/3/2011
4/4/2011 0.02
4/5/2011 0.03
4/6/2011 0.08
4/7/2011 0.00
4/8/2011
4/9/2011
4/10/2011
4/11/2011
4/12/2011
4/13/2011 0.00
4/14/2011 0.03
4/15/2011 0.12
4/16/2011 0.00
4/17/2011 0.08
4/18/2011 0.05
4/19/2011 0.61
4/20/2011
4/21/2011 0.00
4/22/2011 1.03
4/23/2011 0.57
4/24/2011
4/25/2011
4/26/2011
4/27/2011 0.25
4/28/2011 0.04
4/29/2011 0.00
4/30/2011 0.39
5/1/2011 T
5/2/2011 0.09
5/3/2011 0.00
5/4/2011 0.00
5/5/2011
5/6/2011
5/7/2011
5/8/2011 0.00
5/9/2011 0.50 **
5/10/2011 2.50 3.09
5/11/2011 0.83
5/12/2011 0.00
5/13/2011
5/14/2011 0.00
5/15/2011
5/16/2011
5/17/2011 0.00
5/18/2011 0.46
5/19/2011 0.35
5/20/2011 1.31
5/21/2011 1.36
5/22/2011 0.97
5/23/2011
5/24/2011 0.07
5/25/2011 0.28
5/26/2011
5/27/2011 0.20
5/28/2011
5/29/2011
5/30/2011 1.28
5/31/2011
6/1/2011
6/2/2011
6/3/2011
6/4/2011
6/5/2011
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.04
6/9/2011 0.02
6/10/2011 0.28
6/11/2011 0.01
6/12/2011 0.00
6/13/2011 0.19
6/14/2011 0.23
6/15/2011 0.02
6/16/2011 0.15
6/17/2011 0.30
6/18/2011 0.16
6/19/2011
6/20/2011 0.00
6/21/2011 0.00
6/22/2011 0.03
6/23/2011 0.00
6/24/2011 0.12
6/25/2011 T
6/26/2011 T
6/27/2011 0.19
6/28/2011
6/29/2011 0.00
6/30/2011
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.08
7/2/2011 0.20
7/3/2011 0.00
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011
7/10/2011
7/11/2011
7/12/2011
7/13/2011
7/14/2011
7/15/2011 0.87
7/16/2011 0.00
7/17/2011
7/18/2011
7/19/2011 0.00
7/20/2011
7/21/2011
7/22/2011 0.00
7/23/2011 0.57
7/24/2011
7/25/2011 0.00
7/26/2011 0.00
7/27/2011 0.05
7/28/2011
7/29/2011
7/30/2011
7/31/2011
8/1/2011 T
8/2/2011
8/3/2011 0.00
8/4/2011 0.00
8/5/2011 0.00
8/6/2011
8/7/2011
8/8/2011
8/9/2011 0.00
8/10/2011
8/11/2011 T
8/12/2011 0.00
8/13/2011
8/14/2011 0.00
8/15/2011
8/16/2011 0.00
8/17/2011
8/18/2011 0.00
8/19/2011
8/20/2011 0.00
8/21/2011 0.00
8/22/2011
8/23/2011 0.00
8/24/2011
8/25/2011
8/26/2011 0.00
8/27/2011 0.00
8/28/2011
8/29/2011
8/30/2011 0.15
8/31/2011 0.00
9/1/2011
9/2/2011 0.00
9/3/2011
9/4/2011
9/5/2011
9/6/2011
9/7/2011 0.00
9/8/2011
9/9/2011
9/10/2011
9/11/2011
9/12/2011
9/13/2011
9/14/2011 T
9/15/2011 0.00
9/16/2011
9/17/2011 T
9/18/2011 0.09
9/19/2011
9/20/2011
9/21/2011
9/22/2011
9/23/2011
9/24/2011
9/25/2011
9/26/2011
9/27/2011
9/28/2011
9/29/2011
9/30/2011



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
2/17/2011 8:00 AM 0.05 1.5 0.05 M M It started snowing in the early hours of the 17th. Still snowing at 11:00
2/19/2011 8:00 AM T T M M M Flurries this morning. @ 4pm snowing more visiblity limted to 1/2 mile
2/20/2011 8:00 AM 0.82 9.4 0.82 M M Blowing and Drifting snow. Snow started at 4:00 pm yesterday 2/19/2011.
2/23/2011 8:00 AM T T 0.01 M M flurries this morning. We have about 12-14 inches of total snow from storm on Sunday the 20th of February.
2/24/2011 8:00 AM 0.19 1.2 0.19 M M
2/25/2011 8:00 AM 0.00 0.0 M M M
2/26/2011 7:00 AM 0.00 0.0 M M M -32 at 6:00 a.m.
3/11/2011 8:00 AM 0.45 M M M M
3/12/2011 8:00 AM 0.00 0.0 M M M Two ice jams on Powder River.
3/15/2011 8:00 AM 0.08 M M M M
3/19/2011 8:00 AM 0.00 0.0 M M M
3/22/2011 8:00 AM 0.00 0.0 M M M
3/23/2011 8:00 AM 0.08 0.5 0.08 M M
3/26/2011 8:00 AM 0.03 0.1 0.03 M M light snow
3/31/2011 8:00 AM 0.07 M M M M I was late in gettin this report in. But the amount was taken at 8 am this morning.
4/1/2011 8:00 AM 0.13 M M M M
4/2/2011 4:00 PM 0.00 0.0 M M M clouds building in the west moving east.
4/4/2011 8:00 AM 0.02 M M M M
4/5/2011 8:00 AM 0.03 M M M M
4/6/2011 8:00 AM 0.08 M M M M
4/7/2011 8:00 AM 0.00 0.0 M M M
4/13/2011 8:00 AM 0.00 0.0 M M M
4/14/2011 7:00 AM 0.03 M M M M Rainy and Windy.
4/15/2011 8:00 AM 0.12 M M M M
4/16/2011 8:00 AM 0.00 0.0 M M M
4/17/2011 7:00 AM 0.08 M M M M
4/18/2011 8:00 AM 0.05 M M M M
4/19/2011 8:00 AM 0.61 8.6 0.61 8.6 M
4/21/2011 8:00 AM 0.00 0.0 M M M
4/22/2011 8:00 AM 1.03 M M M M
4/23/2011 8:00 AM 0.57 M M M M
4/27/2011 8:00 AM 0.25 M M M M
4/28/2011 8:00 AM 0.04 M M M M
4/29/2011 8:00 AM 0.00 0.0 M M M windy and cooler today.
4/30/2011 8:00 AM 0.39 M M M M Strong wind gusts! Another rain guage recorded .50. But the one from you recorded the amount reported.
5/1/2011 8:00 AM T M M M M
5/2/2011 8:00 AM 0.09 M M M M
5/3/2011 3:00 PM 0.00 0.0 M M M
5/4/2011 8:00 AM 0.00 0.0 M M M
5/8/2011 8:00 AM 0.00 0.0 M M M
5/9/2011 8:00 AM 0.50 M M M M Thunder and lightning around 5:00 pm. Heavy rain started at 9:00 pm MDT
5/10/2011 8:00 AM 2.50 M M M M Small Streams flooding. Powder River out of its banks just north of our house, flooding fields. Roads are blocked
5/11/2011 8:00 AM 0.83 M M M M River is down a couple of feet this morning.
5/12/2011 8:00 AM 0.00 0.0 M M M
5/14/2011 8:00 AM 0.00 0.0 M M M
5/17/2011 8:00 AM 0.00 0.0 M M M
5/18/2011 8:00 AM 0.46 M M M M Still continuing to rain.
5/19/2011 9:00 AM 0.35 M M M M
5/20/2011 8:00 AM 1.31 M M M M Startedflooding around 10:00 pm MST.
5/21/2011 7:50 AM 1.36 M M M M
5/22/2011 8:15 AM 0.97 M M M M
5/24/2011 8:00 AM 0.07 M M M M
5/25/2011 7:30 AM 0.28 M M M M
5/27/2011 6:30 PM 0.20 M M M M
5/30/2011 8:00 AM 1.28 M M M M
6/6/2011 8:00 AM 0.00 0.0 M M M
6/7/2011 8:00 AM 0.00 0.0 M M M Heavy clouds in the area. cooler temperatures,
6/8/2011 8:00 AM 0.04 M M M M
6/9/2011 8:00 AM 0.02 M M M M
6/10/2011 8:00 AM 0.28 M M M M Steady drizzle.
6/11/2011 8:00 AM 0.01 M M M M
6/12/2011 2:30 PM 0.00 0.0 M M M Heavy fog was in the vicinity at 6:00 a.m. this morning.
6/13/2011 8:00 AM 0.19 M M M M
6/14/2011 8:00 AM 0.23 M M M M Severe storm came rumbling through in the night. Around 11:30 the eye of the storm was overhead. Lots of rain, thunder and ground to ground lightning. Wind was very strong as well. I do not have a weather station so cannot judge how strong it was. But it rattled the windows. Electricity popped off a few times as well. Beautiful blue skies this morning.
6/15/2011 8:00 AM 0.02 M M M M
6/16/2011 8:00 AM 0.15 M M M M Strong thunderstorm went through at about 11:00 pm last night. With high wind and rain.
6/17/2011 8:00 AM 0.30 M M M M Started raining about 5 am this morning. Breeze is mild.
6/18/2011 8:00 AM 0.16 M M M M This was from yesterday's rin showers. No showers have been noted after 5 pm yesterday.
6/20/2011 8:00 AM 0.00 0.0 M M M Heavy fog was in the area at 5 am. Lifted by 6 am.
6/21/2011 8:00 AM 0.00 0.0 M M M Beautiful morning. Wind is calm. Could not be better to start the first day of summer.
6/22/2011 8:00 AM 0.03 M M M M Light Fog in the area this morning.
6/23/2011 7:00 AM 0.00 0.0 M M M Wind is calm. Great morning.
6/24/2011 8:00 AM 0.12 M M M M Thundersorms ran through about 11:30 last night
6/25/2011 8:00 AM T M M M M 2 thundershowers went through last night one at 5:00 pm and the other at 11:00 pm.
6/26/2011 8:00 AM T M M M M
6/27/2011 8:00 AM 0.19 M M M M Storm rolled through yesterday about 9 am and then again about 6 pm.
6/29/2011 8:00 AM 0.00 0.0 M M M
7/1/2011 8:00 AM 0.08 M M M M I forgot to mention that on Wednesday June 28th, 2011 that we had a record heat here of 102.5.
7/2/2011 8:00 AM 0.20 M M M M Thundershowers went through yesterday about 9:00 am.
7/3/2011 8:00 AM 0.00 0.0 M M M
7/15/2011 8:00 AM 0.87 M M M M
7/16/2011 8:00 AM 0.00 0.0 M M M
7/19/2011 8:00 AM 0.00 0.0 M M M
7/22/2011 4:20 PM 0.00 0.0 M M M Wind gusts from 10-15 mph. Heavy Down pour started at 4:35 p.m. No hail reported. Lots of branches down in area. I called this into NOAA weather.
7/23/2011 8:00 AM 0.57 M M M M 9 miles east of our home they got 1.20". Three separate storms rumbled through last night. Lots of wind, lightning.
7/25/2011 4:30 PM 0.00 0.0 M M M Storm is approaching here now with rain. Still a few miles to the west of us but approaching our area.
7/26/2011 7:00 PM 0.00 0.0 M M M Storm with wind gusts blowing up siding and debris. Rain and Hail was noted in this violent storm.
7/27/2011 7:00 PM 0.05 M M M M Last night we got strong wind gusts and rain. I believe not all was measured. 9 miles from here we received 1/2" of rain and hail the size of marbles.
8/1/2011 10:00 AM T M M M M
8/3/2011 8:00 AM 0.00 0.0 M M M
8/4/2011 8:00 AM 0.00 0.0 M M M
8/5/2011 8:00 AM 0.00 0.0 M M M Dry lightning came through at 4:00 p.m. yesterday starting two grass fires on our property. One a 3 miles from this location and the other 6 miles to the East. No rain in the last 24 hours.
8/9/2011 8:00 AM 0.00 0.0 M M M
8/11/2011 8:00 AM T M M M M
8/12/2011 8:00 AM 0.00 0.0 M M M
8/14/2011 8:00 AM 0.00 0.0 M M M
8/16/2011 8:00 AM 0.00 0.0 M M M
8/18/2011 8:00 AM 0.00 0.0 M M M
8/20/2011 8:00 AM 0.00 0.0 M M M
8/21/2011 8:00 AM 0.00 0.0 M M M
8/23/2011 8:00 AM 0.00 0.0 M M M Lots of smoke in the area from the fires. Hot day!
8/26/2011 8:00 AM 0.00 0.0 M M M
8/27/2011 8:00 AM 0.00 0.0 M M M
8/30/2011 8:00 AM 0.15 M M M M
8/31/2011 8:00 AM 0.00 0.0 M M M
9/2/2011 8:00 AM 0.00 0.0 M M M Heavy Fog this morning!
9/7/2011 8:00 AM 0.00 0.0 M M M
9/14/2011 8:00 AM T M M M M
9/15/2011 6:30 AM 0.00 0.0 M M M Temperature today is 44 degrees
9/17/2011 8:00 AM T M M M M A few sprinkles this morning. Cloud cover! 50 degrees outside.
9/18/2011 8:00 AM 0.09 M M M M This measurement was taken by 7:00 p.m. on Sept 17, 2011. Temperature today is 37 degrees wind is calm.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
5/9/2011 5/10/2011 3:30 PM 2 3.09 M M Powder River flooding in all low lying areas



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground